@if($errors->any())
<div id="error_explanation" class="callout callout-danger">
	<button type="button" class="close" data-dismiss="alert" aria-hidden="true">×</button>
    <h4>有 {{ count($errors->all()) }} 个错误:</h4>
    <ul>
    @foreach ($errors->all() as $message)
      <li>{{ $message }}</li>
    @endforeach
    </ul>
  </div>
@endif